The Korean government declared the ‘Energy Transition’ to reduce the proportion of coal, nuclear power and expand thesupply of renewable energy in 2017. The government needs to increase the capacity of solar power tenfold compared to the presentand four to eight times for onshore wind power to achieve 20% of renewable energy by 2030. On the other hand, domestic solartechnology is still weaker than leading countries, such as China, and there is a concern that the local renewable energy market, whichis expected to expand in the future, will be subordinated by major foreign companies. This paper proposes a methodology for settinggovernment R&D investment strategy based on value system analysis and presents a case applied to the solar industry. Value systemanalysis provides a useful tool for establishing a national R&D strategy for strengthening the technology development capability ofprivate companies.